我需要获取一个唯一标识当前Windows用户登录会话的值.这适用于winforms应用程序,而不是ASP.NET.我将从多个进程中检索这个,因此在同一个登录会话中检索时需要返回相同的值.在所有用户会话期间,它只需要在当前机器上是唯一的 – 例如直到机器下次重启.
我认为Windows Logon Id是正确的,但看起来有点痛苦.有没有其他或更简单的方法来获得这个?
我将使用ID包含在命名管道服务的地址中,以在计算机上运行的两个进程之间进行通信.我希望包含登录ID以避免在有多个用户登录时发生冲突,包括同一用户的多个会话.
据我所知,你需要的是:
SID:S-1-5-5-X-Y
名称:登录会话
描述:登录会话.这些SID的X和Y值对于每个会话是不同的.
Windows操作系统中众所周知的安全标识符
http://support.microsoft.com/kb/243330
有人在这里要求类似的东西:
How to get the logon SID in C#
这是我的解决方案:
using System; using System.Windows.Forms; using System.Runtime.InteropServices; namespace TestlogonSid { public partial class Form1 : Form { private delegate bool EnumDesktopProc(string lpszDesktop,IntPtr lParam); public Form1() { InitializeComponent(); } private void button1_Click_1(object sender,EventArgs e) { this.textBox1.Text = GetlogonSid.getlogonSid(); } } public class GetlogonSid { //The SID structure that identifies the user that is currently associated with the specified object. //If no user is associated with the object,the value returned in the buffer pointed to by lpnLengthNeeded is zero. //Note that SID is a variable length structure. //You will usually make a call to GetUserObjectinformation to determine the length of the SID before retrieving its value. private const int UOI_USER_SID = 4; //GetUserObjectinformation function //Retrieves information about the specified window station or desktop object. [DllImport("user32.dll")] static extern bool GetUserObjectinformation(IntPtr hObj,int nIndex,[MarshalAs(UnmanagedType.LPArray)] byte[] pvInfo,int nLength,out uint lpnLengthNeeded); //GetThreadDesktop function //Retrieves a handle to the desktop assigned to the specified thread. [DllImport("user32.dll")] private static extern IntPtr GetThreadDesktop(int dwThreadId); //GetCurrentThreadId function //Retrieves the thread identifier of the calling thread. [DllImport("kernel32.dll")] public static extern int GetCurrentThreadId(); //ConvertSidToStringSid function //The ConvertSidToStringSid function converts a security identifier (SID) to a string format suitable for display,storage,or transmission. //To convert the string-format SID back to a valid,functional SID,call the ConvertStringSidToSid function. [DllImport("advapi32",CharSet = CharSet.Auto,SetLastError = true)] static extern bool ConvertSidToStringSid( [MarshalAs(UnmanagedType.LPArray)] byte[] pSID,out IntPtr ptrSid); /// <summary> /// The getlogonSid function returns the logon Session string /// </summary> /// <returns></returns> public static string getlogonSid() { string sidString = ""; IntPtr hdesk = GetThreadDesktop(GetCurrentThreadId()); byte[] buf = new byte[100]; uint lengthNeeded; GetUserObjectinformation(hdesk,UOI_USER_SID,buf,100,out lengthNeeded); IntPtr ptrSid; if (!ConvertSidToStringSid(buf,out ptrSid)) throw new System.ComponentModel.Win32Exception(); try { sidString = Marshal.PtrToStringAuto(ptrSid); } catch { } return sidString; } } }
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